A) \[\frac{1}{2}\sqrt{c({{g}^{2}}+{{f}^{2}}-c)}\]
B) \[\sqrt{c({{g}^{2}}+{{f}^{2}}-c)}\]
C) \[c\sqrt{{{g}^{2}}+{{f}^{2}}-c}\]
D) \[\frac{\sqrt{{{g}^{2}}+{{f}^{2}}-c}}{c}\]
Correct Answer: B
Solution :
[b] Area of quadrilateral \[=\,\,\,2\,[area\,\,of\,\,\Delta OAC]\] \[=2.\frac{1}{2}OA.AC=\sqrt{{{S}_{1}}}.\sqrt{{{g}^{2}}+{{f}^{2}}-c}\] Point is \[(0,0)\Rightarrow {{S}_{1}}=c,\] \[\therefore \] Area \[=\sqrt{c({{g}^{2}}+{{f}^{2}}-c)}\]You need to login to perform this action.
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